git-svn: correctly track diff-less copies with do_switch

diff --git a/builtin-rerere.c b/builtin-rerere.c
index 7442498deedfef1f6be9e550f3c0259aaa82e0ba..dd1d4c1c1de310629282bcb772139e1edec22bf4 100644 (file)
--- a/builtin-rerere.c
+++ b/builtin-rerere.c
@@ -51,9 +51,11 @@ static int write_rr(struct path_list *rr, int out_fd)
        int i;
        for (i = 0; i < rr->nr; i++) {
                const char *path = rr->items[i].path;
-               write(out_fd, rr->items[i].util, 40);
-               write(out_fd, "\t", 1);
-               write(out_fd, path, strlen(path) + 1);
+               int length = strlen(path) + 1;
+               if (write_in_full(out_fd, rr->items[i].util, 40) != 40 ||
+                   write_in_full(out_fd, "\t", 1) != 1 ||
+                   write_in_full(out_fd, path, length) != length)
+                       die("unable to write rerere record");
        }
        close(out_fd);
        return commit_lock_file(&write_lock);
@@ -103,11 +105,11 @@ static int handle_file(const char *path,
                SHA1_Init(&ctx);
 
        while (fgets(buf, sizeof(buf), f)) {
-               if (!strncmp("<<<<<<< ", buf, 8))
+               if (!prefixcmp(buf, "<<<<<<< "))
                        hunk = 1;
-               else if (!strncmp("=======", buf, 7))
+               else if (!prefixcmp(buf, "======="))
                        hunk = 2;
-               else if (!strncmp(">>>>>>> ", buf, 8)) {
+               else if (!prefixcmp(buf, ">>>>>>> ")) {
                        hunk_no++;
                        hunk = 0;
                        if (memcmp(one->ptr, two->ptr, one->nr < two->nr ?
@@ -244,7 +246,8 @@ static int outf(void *dummy, mmbuffer_t *ptr, int nbuf)
 {
        int i;
        for (i = 0; i < nbuf; i++)
-               write(1, ptr[i].ptr, ptr[i].size);
+               if (write_in_full(1, ptr[i].ptr, ptr[i].size) != ptr[i].size)
+                       return -1;
        return 0;
 }
 
@@ -350,11 +353,10 @@ static int do_plain_rerere(struct path_list *rr, int fd)
                fprintf(stderr, "Recorded resolution for '%s'.\n", path);
                copy_file(path, rr_path(name, "postimage"));
 tail_optimization:
-               if (i < rr->nr - 1) {
+               if (i < rr->nr - 1)
                        memmove(rr->items + i,
-                                       rr->items + i + 1,
-                                       rr->nr - i - 1);
-               }
+                               rr->items + i + 1,
+                               sizeof(rr->items[0]) * (rr->nr - i - 1));
                rr->nr--;
                i--;
        }